Evidence map›Paper›PMID 41974746›Full record

ArticleScientific reports2026

Impact of defects and asymmetry on the acoustic transmission of serial resonators.

Mohamed El Malki, Ilyas Antraoui, Ali Khettabi, May Bin-Jumah, Mohammed Sallah, Ali Hennache, Mohamed S El Tokhy, Zaky A Zaky

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Article in Scientific reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
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1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

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Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors.

Mohamed El MalkiLaboratory of Materials, Waves, Energy and Environment, Department of Physics, Faculty of Sciences, Mohammed First University, Oujda, 60000, Morocco.
Ilyas AntraouiLaboratory of Materials, Waves, Energy and Environment, Department of Physics, Faculty of Sciences, Mohammed First University, Oujda, 60000, Morocco.
Ali KhettabiLaboratory of Materials, Waves, Energy and Environment, Department of Physics, Faculty of Sciences, Mohammed First University, Oujda, 60000, Morocco.
May Bin-JumahDepartment of Biology, College of Science, Princess Nourah Bint Abdulrahman University, P.O. BOX 84428, Riyadh, 11671, Saudi Arabia.
Mohammed SallahDepartment of Physics, College of Sciences, University of Bisha, P.O. Box 344, Bisha, 61922, Saudi Arabia.
Ali HennacheDeanship of Scientific Research, Imam Mohammad Ibn Saud Islamic University (IMSIU), P.O.Box 5701, Riyadh, 11432, Saudi Arabia.
Mohamed S El TokhyDepartment of Computer Science and Information, College of Science Zulfi, Majmaah University, Al-Majmaah, 11952, Saudi Arabia.
Zaky A ZakyPhysics Department, Faculty of Science, Beni-Suef University, Beni Suef, 62514, Egypt. zaky.a.zaky@science.bsu.edu.eg.ORCID http://orcid.org/0000-0002-8300-7755

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This paper investigates the influence of symmetric and asymmetric defect configurations on the properties of the defect mode in one-dimensional periodic acoustic structures composed of an array of resonators with different boundary conditions at their ends. Numerical computations based on the transfer matrix and the finite element methods (TMM and FEM) are used to explain the influence of defects on wave transmission via localized modes within acoustic band gaps. The results demonstrate that symmetry-breaking defects produce sharper, more tunable defect modes, while symmetric structures exhibit stable, predictable acoustic responses. The geometric defects, including length and cross-sectional area, were shown to significantly affect the frequency of localized modes and the efficiency of acoustic filtering. These results suggest possible applications in the design of tunable acoustic filters and sensors that are enhanced by noise reduction or energy localization.

Indexed as

Acoustic filteringAcoustic sensorsAsymmetric defect configurationsGeometry defectsLocalized modesResonatorsSymmetric defect configurations

Identifiers

PMID41974746
PMCPMC13076950

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.